CN105338407A - Program play encryption method and device - Google Patents

Program play encryption method and device Download PDF

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Publication number
CN105338407A
CN105338407A CN201510725945.4A CN201510725945A CN105338407A CN 105338407 A CN105338407 A CN 105338407A CN 201510725945 A CN201510725945 A CN 201510725945A CN 105338407 A CN105338407 A CN 105338407A
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CN
China
Prior art keywords
program
top box
password
set top
user
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510725945.4A
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Chinese (zh)
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CN105338407B (en
Inventor
丁小东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STAR SOFTWARE TECHNOLOGY CO LTD
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STAR SOFTWARE TECHNOLOGY CO LTD
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Priority to CN201510725945.4A priority Critical patent/CN105338407B/en
Publication of CN105338407A publication Critical patent/CN105338407A/en
Application granted granted Critical
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4627—Rights management associated to the content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The invention provides a program play encryption method and device. The program play encryption method comprises the steps that a system equipment list issued by a front end is received, and the system equipment list is provided with private descriptors for describing the categories of programs; the private descriptors are parsed and the categories of the programs are acquired; and a set top box password is arranged in the programs of which the categories are encryption categories. With application of the program play encryption method and device, automatic locking is performed when a user searches the high-level programs without manual locking of the user. As for the high-level programs, the user requires to input a CA password and also requires to input the set top box password so that play security of the high-level programs is increased.

Description

Program plays encryption method and device
Technical field
The present invention relates to video decode and communication technical field, particularly a kind of Double-puzzle program plays encryption method and device.
Background technology
Along with the development of Digital Television and video coding technique, under same bandwidth, the program that operator can transmit gets more and more, and content is also more and more abundanter.But; program level is different; the age bracket be applicable to is also different; such as some program scene compares violence; be not suitable for middle school student and following crowd viewing thereof; carry out cryptoguard with regard to needs to this program, CA (ConditinalAccess) system can heighten the rank of program, requires that user inputs password.But the character that remote controller can be arranged password is limited, if this program only establishes a password, easily out tested, need to arrange Double-puzzle, greatly to reduce the probability cracked, the program that effective protection class is high.
In addition, for high level program, in prior art, generally only have this one deck of CA to control password, when user is switched to this program, only need inputs CA password and just can watch.Inventor, when implementing of the present invention, finds that in prior art, at least there are the following problems:
1. high level program only has CA one deck password, and the password of a lot of CA system manufacturer only supports numeral, and be easy to out tested, fail safe is low.
2., in order to improve program viewing grade, user needs manually to lock to high-level program, reduces man-machine interaction friendly.
3. Set Top Box has hundreds of programs, need broadcast one time one by one, then manually lock to high-level program, the workload of adding users, sometimes may also can omit.
Summary of the invention
Embodiments provide program and play encryption method, to carry out CA password and Set Top Box password encryption to high-level program, increase the fail safe that high-level program is play.
To achieve these goals, embodiments provide a kind of program and play encryption method, comprising:
In system device table, add the private setting descriptor of program, in described private setting descriptor, describe the classification belonging to described program;
Described system device table is issued, to control described Set Top Box generation machine top box password to Set Top Box.
In one embodiment, this program is play encryption method and is also comprised:
Receive the Set Top Box password replacement request that described Set Top Box is sent;
Reset request according to described Set Top Box password generate the instruction of replacement Set Top Box password and this instruction is issued to described Set Top Box.
In one embodiment, in described private setting descriptor, also describe descriptor label and descriptor length.
To achieve these goals, the embodiment of the present invention provides a kind of program to play encryption method, comprising:
The system device table that receiving front-end issues, is provided with the private setting descriptor describing program generic in described system device table;
Resolve described private setting descriptor, obtain the classification belonging to described program;
Be that the program encrypting class adds Set Top Box password by affiliated classification.
In one embodiment, this program is play encryption method and is also comprised: the CA password that the classification of receiving front-end CA system belonging to program issues.
In one embodiment, this program is play encryption method and is also comprised:
Receive the program playing request of user;
When judging that according to described program playing request user asks the program of broadcasting as encryption class program, prompting user reader top box password.
In one embodiment, this program is play encryption method and is also comprised:
When judging that according to described program playing request user asks the program of broadcasting as encryption class program, and when user's first time, this encryption class program was play in request, user is pointed out to revise Set Top Box password.
In one embodiment, this program is play encryption method and is also comprised:
Receive the program playing request of user;
When judging that according to described program playing request user asks the program of broadcasting as encryption class program, prompting user's reader top box password and CA password.
In one embodiment, this program is play encryption method and is also comprised:
Receive the program playing request of user;
When judging that according to described program playing request user asks the program of broadcasting as encryption class program, and when user's first time, this encryption class program was play in request, user is pointed out to revise Set Top Box password and CA password.
In one embodiment, this program is play encryption method and is also comprised:
Judge whether the errors number of user's reader top box password exceedes pre-determined number;
If so, request is reset to described front end transmitter top box password;
Receive the instruction of the replacement Set Top Box password that described front end issues, prompting user revises the Set Top Box password that front end is arranged.
In one embodiment, this program is play encryption method and is also comprised:
Judge whether the errors number that user inputs CA password exceedes pre-determined number;
If so, send CA password to described front end CA system and reset request;
Receive the instruction of the replacement Set Top Box password that described front end CA system issues, prompting user revises the Set Top Box password of front end CA Operation system setting.
In one embodiment, described Set Top Box password is the combination of digital keys and other buttons on remote controller.
In one embodiment, described CA password is made up of discontinuous numeral or not identical numeral.
To achieve these goals, the embodiment of the present invention also provides a kind of program to play encryption device, comprising:
Descriptor adding device, for adding the private setting descriptor of program in system device table, describes the classification belonging to described program in described private setting descriptor;
Equipment list issues unit, for issuing described system device table to Set Top Box, to control described Set Top Box generation machine top box password.
In one embodiment, this program is play encryption device and is also comprised:
Request reception unit, the Set Top Box password sent for receiving described Set Top Box resets request;
Password generation unit, generates the instruction of replacement Set Top Box password for resetting request according to described Set Top Box password and this instruction is issued to described Set Top Box.
In one embodiment, in described private setting descriptor, also describe descriptor label and descriptor length.
To achieve these goals, the embodiment of the present invention also provides a kind of program to play encryption device, comprising:
Equipment list receiving element, for the system device table that receiving front-end issues, is provided with the private setting descriptor describing program generic in described system device table;
Resolution unit, for resolving described private setting descriptor, obtains the classification belonging to described program;
Ciphering unit, for by affiliated classification be encryption class program add Set Top Box password.
In one embodiment, this program is play encryption device and is also comprised: CA password acceptance unit, for the CA password that the classification of receiving front-end CA system belonging to program issues.
In one embodiment, this program is play encryption device and is also comprised: also comprise:
Playing request receiving element, for receiving the program playing request of user;
First Tip element, when judging that according to described program playing request user asks the program of broadcasting as encryption class program, for pointing out user's reader top box password.
In one embodiment, described first Tip element also for: when judging that according to described program playing request the program that user asks to play is encryption class program, and when user's first time, this encryption class program was play in request, point out user to revise Set Top Box password.
In one embodiment, the second Tip element, when judging that according to described program playing request user asks the program of broadcasting as encryption class program, for pointing out user's reader top box password and CA password.
In one embodiment, described second Tip element also for: when judge according to described program playing request user ask play program for encrypt class program time, and when user's first time, this encryption class program was play in request, prompting user revises Set Top Box password and CA password.
In one embodiment, this program is play encryption device and is also comprised:
First judging unit, for judging whether the errors number of user's reader top box password exceedes pre-determined number;
First resets request transmitting unit, for resetting request to described front end transmitter top box password;
Arrange Tip element, for receiving the instruction of the replacement Set Top Box password that described front end issues, prompting user revises the Set Top Box password that front end is arranged.
In one embodiment, this program is play encryption device and is also comprised:
Second judges judging unit, for judging whether the errors number that user inputs CA password exceedes pre-determined number;
Second resets request transmitting unit, resets request for sending CA password to described front end CA system;
Amendment Tip element, for receiving the instruction of the replacement Set Top Box password that described front end CA system issues, prompting user revises the Set Top Box password of front end CA Operation system setting.
In one embodiment, described Set Top Box password is the combination of digital keys and other buttons on remote controller.
In one embodiment, described CA password is made up of discontinuous numeral or not identical numeral.
By the present invention, user automatically can add lock when searching for high-level program, does not need user manually to go to lock.For high-level program, user not only will input CA password, also wants reader top box password, avoids single password easily out tested, adds the fail safe that high-level program is play.
The present invention also increases the restriction of bad password number of times, reduces user by repeatedly testing the probability guesing out password.
In addition, Set Top Box password needs numerical key and other key combination, adds fail safe.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that the program of the embodiment of the present invention plays encryption method flow chart;
Fig. 2 is the private setting descriptor schematic diagram of the embodiment of the present invention;
Fig. 3 is that the Set Top Box password of the embodiment of the present invention resets flow chart;
Fig. 4 is the structured flowchart of the program broadcasting encryption device of one embodiment of the invention;
Fig. 5 is the structured flowchart of the program broadcasting encryption device of one embodiment of the invention;
Fig. 6 one embodiment of the invention provides a kind of program to play encryption method flow chart;
Fig. 7 is the structured flowchart of the program broadcasting encryption device of one embodiment of the invention;
Fig. 8 is the structured flowchart of the program broadcasting encryption device of one embodiment of the invention;
Fig. 9 is the structured flowchart of the program broadcasting encryption device of one embodiment of the invention;
Figure 10 is the structured flowchart of the program broadcasting encryption device of one embodiment of the invention;
Figure 11 is the structured flowchart of the program broadcasting encryption device of one embodiment of the invention;
Figure 12 is the structured flowchart of the program broadcasting encryption device of one embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of program and play encryption method, as shown in Figure 1, this program is play encryption method and is comprised:
S101: the private setting descriptor adding program in system device table, describes the classification belonging to described program in described private setting descriptor;
S102: issue described system device table to Set Top Box, to control described Set Top Box generation machine top box password.
In flow process shown in Fig. 1, executive agent can be the headend equipment (equipment of TV programme operator) of Set Top Box, the private setting descriptor describing TV programme generic is added by set-top box front-end equipment (ServiceDeviceTableSDT) in the system device table of this locality, and be handed down to Set Top Box by modes such as broadcast, Set Top Box generation machine top box password can be made.
The above-mentioned high-level program needing the TV programme of generation machine top box password to be generally operator's definition, if operator thinks that a certain program is high-level program, just can add in SDT and describe the private setting descriptor of this program, and in this private setting descriptor, describe this program generic be high-level program (as SpecialCharacteristics class program).
It should be noted that, for the program general programs (as CCTV5, local satellite TV etc.) not needing Set Top Box password encryption, set-top box front-end also can add the private setting descriptor of such program in SDT, also can describe such program generic in private setting descriptor.
Illustrate the private setting descriptor how adding high-level program, set-top box front-end is in SDT, adding label is 0XCC private setting descriptor (program_category_descriptor), which classification this descriptor belongs to for describing this program, a program can belong to multiple classification, for the program needing to carry out Double-puzzle control (carry out CA password encryption and Set Top Box encryption) simultaneously, can be added in SpecialCharacteristics classification, the explanation of private setting descriptor as shown in Figure 2.
Not only describe program generic in private setting descriptor, also describe descriptor label and descriptor length, in Fig. 2, the implication of every representative is described as follows:
Descriptor label descriptor_tag
8 is field, and for marking different descriptors, in this descriptor, this field value is 0xCC.
Descriptor length descrtiprot_length
8 is field, represents the byte number of the data division in descriptor from after this field.
Program category program_type
16 bit fields, represent the classification of this service.
Setting Set Top Box Password Input limited number of times is generally needed in Set Top Box, if user inputs password exceed limited number of times, this TV programme will be locked, and need to send request to set-top box front-end the order resetting Set Top Box and carry out the replacement of Set Top Box password, as shown in Figure 3, comprise the steps:
S301: receive the Set Top Box password replacement request that described Set Top Box is sent;
S302: reset request according to described Set Top Box password and generate the instruction of replacement Set Top Box password and this instruction is issued to described Set Top Box.
In the embodiment of the present invention, by adding the private setting descriptor describing high-level program generic in SDT, Set Top Box can be made to be encrypted, adding the fail safe that high-level program is play.The present invention also increases the function that continuous several times input code error carries out resetting, and reduces user by repeatedly testing the probability guesing out password.
Play the identical inventive concept of encryption method based on the program shown in Fig. 1, the embodiment of the present application additionally provides a kind of program and plays encryption device, as below as described in embodiment.Because this program plays the encryption device principle of dealing with problems and program, to play encryption method similar, and therefore the enforcement of this program broadcasting encryption device can play the enforcement of encryption method see program, and repetition part repeats no more.
Fig. 4 is the structured flowchart of the program broadcasting encryption device of the embodiment of the present invention.As shown in Figure 4, this program broadcasting encryption device comprises: descriptor adding device 401 and equipment list issue unit 402.
Descriptor adding device 401, for adding the private setting descriptor of program in system device table, describes the classification belonging to described program in described private setting descriptor;
Equipment list issues unit 402 for issuing described system device table to Set Top Box, to control described Set Top Box generation machine top box password.
In one embodiment, this program broadcasting encryption device also comprises as shown in Figure 5: request reception unit 403 and password generation unit 404.
The Set Top Box password replacement request that request reception unit 403 is sent for receiving described Set Top Box;
Password generation unit 404 generates the instruction of replacement Set Top Box password for resetting request according to described Set Top Box password and this instruction is issued to described Set Top Box.
In one embodiment, except describing the classification belonging to program in private setting descriptor, also describe descriptor label and descriptor length.
The embodiment of the present invention provides a kind of program to play encryption method, and as shown in Figure 6, this order is play encryption method and comprised:
S601: the system device table that receiving front-end issues, is provided with the private setting descriptor describing program generic in described system device table;
S602: resolve described private setting descriptor, obtains the classification belonging to described program;
S603: be that the program encrypting class adds Set Top Box password by affiliated classification.
In the flow process shown in Fig. 6, the executive agent that order plays encryption method is Set Top Box, and the private setting descriptor of a certain program in the SDT table that set-top box parses STB terminal issues, obtains the classification belonging to this program, when judging that this classification is the program of encryption class, add Set Top Box password for changing program.Play encryption method by this order, automatically can add when searching for high-level program user and lock, add the fail safe of program, and do not need user manually to go to lock.
The playing flow of Set Top Box is as follows:
1, Set Top Box receives the program playing request of user, and namely user selects a certain program by remote controller.
2, according to program playing request, Set Top Box judges whether the program that user asks to play is encryption class program, and judges whether user is channel first time being switched to this encryption class program.
If user asks the program play to be encryption class program, but also non-user first time is switched to the channel of this encryption class program, then point out user's reader top box password.
If user asks the program play to be encryption class program but also non-user first time is switched to the channel of this encryption class program, and user is channel first time being switched to this encryption class program, prompting user is then needed to revise Set Top Box password, just without the need to revising Set Top Box password when switching to the channel of this encryption class program afterwards again, directly input amended Set Top Box password.
3, Set Top Box judges whether the errors number of user's reader top box password exceedes pre-determined number.Set Top Box password generally can not unlimitedly input, and when the errors number of user's reader top box password exceedes pre-determined number, this encryption class program will be locked.Pre-determined number can according to circumstances set arbitrarily, and such as pre-determined number is 6 times.
If the errors number of 4 user's reader top box passwords exceedes pre-determined number, forward end transmitter top box password resets request.When set-top box front-end receives this Set Top Box password replacement request, the instruction of request to Set Top Box transmission replacement Set Top Box password will be reset according to this Set Top Box password.
5, the instruction of replacement Set Top Box password that issues of set top box receiver top box front end, prompting user revises the Set Top Box password of front end amendment.After Set Top Box receives this instruction, this encryption class program will be become the state of amendment Set Top Box password from locking.
Set Top Box can in last day monthly, and prompting user revises Set Top Box password.
Set Top Box password can be the combination of digital keys and other buttons on remote controller, to increase fail safe.
In one embodiment, except arranging Set Top Box password, the present invention can also add CA password, and when specifically implementing, Set Top Box can the CA password that issues of the classification of receiving front-end CA system belonging to program.CA password is the password that the smart card of Set Top Box is corresponding, and this CA password is handed down to the smart card of Set Top Box by front end CA system.
For the Set Top Box password of TV programme and the situation of CA password that only arrange broadcasting, the playing flow of Set Top Box is as follows:
1, Set Top Box receives the program playing request of user, and namely user selects a certain program by remote controller.
2, according to program playing request, Set Top Box judges whether the program that user asks to play is encryption class program, and judges whether user is channel first time being switched to this encryption class program.
If user asks the program play to be encryption class program, but also non-user first time is switched to the channel of this encryption class program, then point out user's reader top box password and CA password.General needs first reader top box password, then input CA password.
If user asks the program play to be encryption class program but also non-user first time is switched to the channel of this encryption class program, and user is channel first time being switched to this encryption class program, prompting user is then needed to revise Set Top Box password and CA password, just without the need to revising Set Top Box password and CA password when switching to the channel of this encryption class program afterwards again, directly input amended Set Top Box password and CA password.Generally need first to revise Set Top Box password, then revise CA password.
3, Set Top Box judges whether the errors number of user's reader top box password and CA password exceedes pre-determined number.Set Top Box password and CA password generally can not unlimitedly input, and when the errors number of user's reader top box password exceedes pre-determined number, this encryption class program will be locked.Pre-determined number can according to circumstances set arbitrarily, and such as pre-determined number is 6 times.
If the errors number of user's reader top box password exceedes pre-determined number, forward end transmitter top box password resets request.When set-top box front-end receives this Set Top Box password replacement request, the instruction of request to Set Top Box transmission replacement Set Top Box password will be reset according to this Set Top Box password.
If the errors number that user inputs CA password exceedes pre-determined number, forward end CA system transmitter top box password resets request.Front end CA system receives this CA password when resetting request, will reset request send the instruction resetting CA password to Set Top Box according to this CA password, and this instruction is the successfully modified instruction of CA password, informs that CA password resets.
4, the instruction of the replacement Set Top Box password that issues of set top box receiver top box front end and/CA password, prompting user revises Set Top Box password and the/CA password of front end amendment.After Set Top Box receives this instruction, this encryption class program will be become the state of amendment Set Top Box password and/CA password from locking.
Set Top Box can in last day monthly, and prompting user revises Set Top Box password and CA password.
CA password is generally made up of discontinuous numeral or not identical numeral, prevents from being tried out by user.
By the present invention, user automatically can add lock when searching for high-level program, does not need user manually to go to lock.For high-level program, user not only will input CA password, also wants reader top box password, avoids single password easily out tested, adds the fail safe that high-level program is play.
The present invention also increases the restriction of bad password number of times, reduces user by repeatedly testing the probability guesing out password.
In addition, Set Top Box password needs numerical key and other key combination, adds fail safe.
Play the identical inventive concept of encryption method based on the program shown in Fig. 6, the embodiment of the present application additionally provides a kind of program and plays encryption device, as below as described in embodiment.Because this program plays the encryption device principle of dealing with problems and program, to play encryption method similar, and therefore the enforcement of this program broadcasting encryption device can play the enforcement of encryption method see program, and repetition part repeats no more.
Fig. 7 is the structured flowchart of the program broadcasting encryption device of the embodiment of the present invention.As shown in Figure 7, this program broadcasting encryption device comprises: equipment list receiving element 701, resolution unit 702 and ciphering unit 703.
The system device table that equipment list receiving element 701 issues for receiving front-end, is provided with the private setting descriptor describing program generic in described system device table;
Resolution unit 702, for resolving described private setting descriptor, obtains the classification belonging to described program;
Ciphering unit 703 for by affiliated classification be encryption class program add Set Top Box password.
As shown in Figure 8, in one embodiment, this program broadcasting encryption device also comprises: playing request receiving element 704 and the first Tip element 705.
Playing request receiving element 704 is for receiving the program playing request of user;
When judging that according to described program playing request user asks the program of broadcasting as encryption class program, the first Tip element 705 is for pointing out user's reader top box password.
When judging that according to described program playing request user asks the program of broadcasting as encryption class program, and when user's first time, this encryption class program was play in request, the first Tip element 705 is also for pointing out user to revise Set Top Box password.
As shown in Figure 9, in one embodiment, this program is play encryption device and is also comprised: CA password acceptance unit 901, for the CA password that the classification of receiving front-end CA system belonging to program issues.
As shown in Figure 10, in one embodiment, this program broadcasting encryption device also comprises: playing request receiving element 902 and the second Tip element 903.
Playing request receiving element 902 is for receiving the program playing request of user;
When judging that according to described program playing request user asks the program of broadcasting as encryption class program, the second Tip element 903 is for pointing out user's reader top box password and CA password.
In one embodiment, when judging that according to described program playing request user asks the program of broadcasting as encryption class program, and user first time request play this encryption class program time, the second Tip element 903 also for: prompting user revise Set Top Box password and CA password.
As shown in figure 11, this program broadcasting encryption device also comprises: the first judging unit 706, first resets request transmitting unit 707 and arranges Tip element 708.
First judging unit 706 is for judging whether the errors number of user's reader top box password exceedes pre-determined number;
First resets request transmitting unit 707 for resetting request to described front end transmitter top box password;
Arrange the instruction of replacement Set Top Box password of Tip element 708 for receiving described front end and issuing, prompting user revises the Set Top Box password that front end is arranged.
As shown in figure 12, this program is play encryption device and is also comprised: second judges judging unit 904, and second resets request transmitting unit 905 and amendment Tip element 906.
Second judges whether judging unit 904 exceedes pre-determined number for the errors number judging user and input CA password;
Second resets request transmitting unit 905 resets request for sending CA password to described front end CA system;
The instruction of replacement Set Top Box password of amendment Tip element 906 for receiving described front end CA system and issuing, prompting user revises the Set Top Box password of front end CA Operation system setting.
In one embodiment, Set Top Box password is the combination of digital keys and other buttons on remote controller.
In one embodiment, CA password is made up of discontinuous numeral or not identical numeral.
By the present invention, user automatically can add lock when searching for high-level program, does not need user manually to go to lock.For high-level program, user not only will input CA password, also wants reader top box password, avoids single password easily out tested, adds the fail safe that high-level program is play.
The present invention also increases the restriction of bad password number of times, reduces user by repeatedly testing the probability guesing out password.
In addition, Set Top Box password needs numerical key and other key combination, adds fail safe.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Apply specific embodiment in the present invention to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (26)

1. program plays an encryption method, it is characterized in that, comprising:
In system device table, add the private setting descriptor of program, in described private setting descriptor, describe the classification belonging to described program;
Described system device table is issued, to control described Set Top Box generation machine top box password to Set Top Box.
2. program according to claim 1 plays encryption method, it is characterized in that, also comprises:
Receive the Set Top Box password replacement request that described Set Top Box is sent;
Reset request according to described Set Top Box password generate the instruction of replacement Set Top Box password and this instruction is issued to described Set Top Box.
3. program according to claim 2 plays encryption method, it is characterized in that, also describes descriptor label and descriptor length in described private setting descriptor.
4. program plays an encryption method, it is characterized in that, comprising:
The system device table that receiving front-end issues, is provided with the private setting descriptor describing program generic in described system device table;
Resolve described private setting descriptor, obtain the classification belonging to described program;
Be that the program encrypting class adds Set Top Box password by affiliated classification.
5. program according to claim 4 plays encryption method, it is characterized in that, also comprises: the CA password that the classification of receiving front-end CA system belonging to program issues.
6. program according to claim 4 plays encryption method, it is characterized in that, also comprises:
Receive the program playing request of user;
When judging that according to described program playing request user asks the program of broadcasting as encryption class program, prompting user reader top box password.
7. program according to claim 6 plays encryption method, it is characterized in that, also comprises:
When judging that according to described program playing request user asks the program of broadcasting as encryption class program, and when user's first time, this encryption class program was play in request, user is pointed out to revise Set Top Box password.
8. program according to claim 5 plays encryption method, it is characterized in that, also comprises:
Receive the program playing request of user;
When judging that according to described program playing request user asks the program of broadcasting as encryption class program, prompting user's reader top box password and CA password.
9. program according to claim 8 plays encryption method, it is characterized in that, also comprises:
When judging that according to described program playing request user asks the program of broadcasting as encryption class program, and when user's first time, this encryption class program was play in request, user is pointed out to revise Set Top Box password and CA password.
10. the program according to any one of claim 4-9 plays encryption method, it is characterized in that, also comprises:
Judge whether the errors number of user's reader top box password exceedes pre-determined number;
If so, request is reset to described front end transmitter top box password;
Receive the instruction of the replacement Set Top Box password that described front end issues, prompting user revises the Set Top Box password that front end is arranged.
11. programs according to claim 5,8 or 9 play encryption method, it is characterized in that, also comprise:
Judge whether the errors number that user inputs CA password exceedes pre-determined number;
If so, send CA password to described front end CA system and reset request;
Receive the instruction of the replacement Set Top Box password that described front end CA system issues, prompting user revises the Set Top Box password of front end CA Operation system setting.
12. programs according to any one of claim 4-9 play encryption method, and it is characterized in that, described Set Top Box password is the combination of digital keys and other buttons on remote controller.
13. programs according to claim 5,8 or 9 play encryption method, and it is characterized in that, described CA password is made up of discontinuous numeral or not identical numeral.
14. 1 kinds of programs play encryption device, it is characterized in that, comprising:
Descriptor adding device, for adding the private setting descriptor of program in system device table, describes the classification belonging to described program in described private setting descriptor;
Equipment list issues unit, for issuing described system device table to Set Top Box, to control described Set Top Box generation machine top box password.
15. programs according to claim 14 play encryption device, it is characterized in that, also comprise:
Request reception unit, the Set Top Box password sent for receiving described Set Top Box resets request;
Password generation unit, generates the instruction of replacement Set Top Box password for resetting request according to described Set Top Box password and this instruction is issued to described Set Top Box.
16. programs according to claim 15 play encryption device, it is characterized in that, also describe descriptor label and descriptor length in described private setting descriptor.
17. 1 kinds of programs play encryption device, it is characterized in that, comprising:
Equipment list receiving element, for the system device table that receiving front-end issues, is provided with the private setting descriptor describing program generic in described system device table;
Resolution unit, for resolving described private setting descriptor, obtains the classification belonging to described program;
Ciphering unit, for by affiliated classification be encryption class program add Set Top Box password.
18. programs according to claim 17 play encryption device, it is characterized in that, also comprise: CA password acceptance unit, for the CA password that the classification of receiving front-end CA system belonging to program issues.
19. programs according to claim 17 play encryption device, it is characterized in that, also comprise:
Playing request receiving element, for receiving the program playing request of user;
First Tip element, when judging that according to described program playing request user asks the program of broadcasting as encryption class program, for pointing out user's reader top box password.
20. programs according to claim 19 play encryption device, it is characterized in that, described first Tip element also for: when judging that according to described program playing request program that user asks to play is for encrypting class program, and when user's first time, this encryption class program was play in request, prompting user revises Set Top Box password.
21. programs according to claim 18 play encryption device, it is characterized in that, also comprise:
Second Tip element, when judging that according to described program playing request user asks the program of broadcasting as encryption class program, for pointing out user's reader top box password and CA password.
22. programs according to claim 18 play encryption device, it is characterized in that, described second Tip element also for: when judge according to described program playing request user ask play program for encrypt class program time, and when user's first time, this encryption class program was play in request, prompting user revises Set Top Box password and CA password.
23. programs according to any one of claim 17-22 play encryption device, it is characterized in that, also comprise:
First judging unit, for judging whether the errors number of user's reader top box password exceedes pre-determined number;
First resets request transmitting unit, for resetting request to described front end transmitter top box password;
Arrange Tip element, for receiving the instruction of the replacement Set Top Box password that described front end issues, prompting user revises the Set Top Box password that front end is arranged.
24. programs according to claim 18,21 or 22 play encryption device, it is characterized in that, also comprise:
Second judges judging unit, for judging whether the errors number that user inputs CA password exceedes pre-determined number;
Second resets request transmitting unit, resets request for sending CA password to described front end CA system;
Amendment Tip element, for receiving the instruction of the replacement Set Top Box password that described front end CA system issues, prompting user revises the Set Top Box password of front end CA Operation system setting.
25. programs according to any one of claim 17-22 play encryption device, and it is characterized in that, described Set Top Box password is the combination of digital keys and other buttons on remote controller.
26. programs according to claim 18,21 or 22 play encryption device, and it is characterized in that, described CA password is made up of discontinuous numeral or not identical numeral.
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